DDX-2050
PRELIMINARY Specifications are subject to change without notice. PRELIMINARY
129
Morgan
Drive,
No
rwood,
MA
02062
voice:
(781)
551-9450
fax:
(781)
440-9528
email:
[email protected] CONTROLLED DOCUMENT: P_903-000030_Rev00 Data Sheet, DDX-2050.doc DRN: PRELIMINARY Page 2 of 13
Absolute Maximum Ratings [Note 1]
SYMBOL PARAMETER VALUE UNIT
VCC Power supply voltage 40V V
VL Input logic reference 5.5V V
Tj Operating junction temperature range -40 to +150 °C
Tstg Storage temperature range -40 to +150 °C
Note 1: Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Recommended Operating Conditions [Note 2]
SYMBOL PARAMETER MIN TYP MAX UNIT
VCC Power supply voltage
[Note 3]
10.0 36.0 V
VL Input logic reference 2.7 3.3 5.0 V
T
A
Ambient Temperature 0 70
°C
Note 2: Performance not guaranteed beyond recommended operating conditions.
Note 3: Overvoltage protection may preclude operation above 30V.
Thermal Data
SYMBOL PARAMETER MIN TYP MAX UNIT
θ
JC
Thermal resistance junction-case (heat spreader) 2.5 °C/W
T
jSD
Thermal shut-down junction temperature 150 °C
Twarn Thermal warning temperature 130
°C
T
hSD
Thermal shut-down hysteresis 25 °C
Electrical Characteristics
Refer to circuit in Figure 4. VCC = 28V, VL = 3.3V, fsw = 384kHz, T
A
= 25C, RL = 8Ω unless otherwise specified.
SYMBOL PARAMETER CONDITION MIN TYP MAX UNIT
Po Output power per channel [Notes 4,5] THD+N <1% 35 Wrms
Po Output power per channel [Notes 4,5] VCC = 30V,
@ 10% THD+N 50 Wrms
UVL
Undervoltage Lockout Threshold 7 9 V
OVP
Overvoltage Protection Threshold 30 35 40 V
I
PD
Vcc supply current in Powerdown 1 3 mA
I
cc
tri Supply current from Vcc in Tristate TRISTATE = 0 22 mA
I
cc
Vcc supply current
2-Channel
switching at
384kHz.
72 mA
I
sc
Output Short-circuit Protection limit Speaker outputs. 3.0 5.0 6.5 A
THD+N Total Harmonic Distortion+Noise [Note 4] Po=1 Wrms
Po=30 Wrms 0.08
0.33
0.18
0.50
%
%
THD+N Total Harmonic Distortion+Noise [Note 5] Po=1 Wrms
Po=30 Wrms 0.05
0.15 %
%
SNR Signal to Noise Ratio [Note 4] A-Weighted 93 dB
SNR Signal to Noise Ratio [Note 5] A-Weighted 100 dB
η Efficiency Po=2 x 30 W 88 %
RdsON Power MOSFET output resistance Id=1A 200 270 mΩ
RdsON
matching Id=1A 95 %
t
on
Turn-on delay time Resistive load 100 ns
t
off
Turn-off delay time Resistive load 100 ns
t
r
Rise time Resistive load 25 ns
t
f
Fall Time Resistive load 25 ns
V
IL
Low logic input voltage on PWRDN,
TRISTATE pins
V
L
= 2.7V
V
L
= 3.3V
V
L
= 5.0V
0.7
0.8
0.85
V
